The CCS-class battlecruiser is a mid-sized capital ship that is used in both offensive and defensive roles. This type of ship is known for its large personnel and equipment capacity, which makes it ideal for infantry, vehicle, and matériel deployments during ground engagements.[3] The vessel is well known for its offensive capabilities, often participating in ship-to-ship combat and in glassing operations. The CCS-class battlecruiser, while not the largest cruiser in service with the Covenant, is the most prominent of the Covenant's ships, and is used in large numbers at the heart of nearly every Covenant invasion force.[2] They are often deployed in three-ship battle groups.[7] The "S", or Salvation, in the cruiser's three-letter classification code, "CCS", denotes that the CCS-class battlecruiser is a dedicated warship capable of destroying its opponents with energy projectors.[8]

Nearly two kilometers from stem to stern, the standard battlecruiser follows the typical architecture of a Covenant ship: a sleek, amphibious design with sweeping contours, bulbous sections, and perfect symmetry,[9] with either two or four fin-like structures beneath the bow. It is shaped this way to allow for mobility in atmosphere during the deployment of infantry, as well as for a significant level of agility when in combat in orbit.[3] Unlike the larger CAS-class assault carrier and the more aggressively deployed CPV-class heavy destroyer, the battlecruiser serves in a somewhat intermediary role: a fully weaponized warship with the ability to apply meaningful military deployment. For this reason it is frequently utilized, easily surpassing the numbers of any other known Covenant vessel.[2]

CCS-class battlecruisers are typically armed with several dozen energy weapons, which are used both in ship-to-ship combat and in glassing operations.[10] These weapons include pulse laser turrets, very powerful speed-of-light weapons that fire high-intensity laser bolts, radiating energy in the blue wavelength of the electromagnetic spectrum,[2] though they sometimes fire nearer the red wavelength.[11] The turrets are chitinous pods featuring insect-like antennae and are located at various points around the vessel.[12][4]

The battlecruiser also has weapon emplacements along its lateral lines. These weapons include plasma torpedo turrets, which fire long, powerful lances of blue-white, amber, or red plasma contained and guided by a shaped magnetic field.[13][11][2][14][15] The ship also possesses two energy projectors, or "cleansing beams", located on the ventral surface - one fore and one amidships, concentric with the gravity lift.[2] In addition to their use in space combat, the energy projectors are used for low-altitude glassing operations. They can seemingly be charged before firing, causing a powerful initial blast,[16] though they are typically fired as a free-flowing beam.[17][18] This beam is typically bluish white,[17][18][19][20][21] though it also may be red[16] or purple.[22][note 1] These different colors likely represent varying beam intensity.

Buried deep within the vessel's heart is the control center, also known as the bridge and the Combat Information Center (CIC),[3] from where the entire ship's operations are coordinated. Typically occupied by only the highest-ranking officers, the control center is a large room with a centralized bridge platform overlooking the rest of the room. Holographic controls line the outer perimeter of the raised dais. The viewscreens are also holographic projections, visible at the forward end of the room near the ceiling. The viewscreens can either display exterior views of the ship's surroundings or can display tactical data. They can also be synchronized to the onboard security cameras and can display ship schematics.[6][9][4]

The CCS has at least two brigs for holding prisoners. Each is a rectangular room with four force field-secured cells on either side, for a total of eight per brig. Each cell can accommodate a large number of prisoners, although normally only one is placed in each cell, probably for security purposes against the possibility of an organized escape attempt. The cell barriers appear to use the same technology as the shield doors that are common to Covenant installations and vessels, though they obviously do not allow passage from one side to the other. Even plasma bolts and ballistic projectiles can not pass through the fields. The shield barriers can be lowered by a holographic control panel on a raised platform on the far side of the brig opposite the entrance. The cells are arranged at the periphery of a spacious room, with guards patrolling them. The guards usually have active camouflage, using their stealth to monitor the prisoners.[6][4]

The CCS-class battlecruiser has multiple storage bays. These bays are connected to cargo hatches and corridors that allow the transfer of matériel from other bays to either the gravity lift room or to the hangar bays. The storage bays are two-level expanses that contain weapons, food, and military equipment crates, in addition to storing both land and air vehicles.[6][4]

The CCS-class battlecruiser contains four bisected hangar bays; two to starboard and two to port. They are each three-tiered, with a large amount of space between the floors and ceilings of each level. Each three-tier bay has two retracting metal doors. The bays feature energy barriers over the openings to allow ships to pass through them while retaining atmosphere and pressure inside the ship. These barriers deny the movement of all forms of matter attempting to enter or leave the hangar bays. Each launch area in the bay is capable of housing dropships and Banshee attack craft. Retracting elevators in the decking of each bay are used to ship Covenant ground and air craft into the bays for launching or for gravity connection to a waiting dropship. These elevators lower into holding areas adjacent to cargo bays.[4][9]

Like most Covenant warships, the CCS-class battlecruiser is equipped with a single ventrally mounted gravity lift, enabling quick and easy transportation of personnel, vehicles, equipment and supplies to a planet's surface. A large, circular platform can be detached and lowered to the ground to provide a stable surface for disembarking and embarking troops, vehicles, and matériel. The platform has six interlocking hinges and is carried with the ship; when the cruiser is in position over a planet's surface, the six interlocks retract and the beam repels the platform at a controlled descent to the surface. Once on the ground the platform acts as an anchor for the ship. The ship can make use of the gravity lift without the platform, but it must remain in position.[4][9] When attached to the ship, the central gravity platform doubles as the firing port for the energy projector,[2] like that of the CAS-class assault carrier and the CSO-class supercarrier.

The gravity lift bay is similar in design to the cargo bays except that it is only one level high. The gravity lift's door mechanism is situated in the center of the room, with cargo and personnel hatches located around the rectangular bay's walls. Several gravity lift bays are on board the cruisers, not far from the cargo and shuttle bays. Each bay has four cargo hatches along opposite walls for vehicle transfer.[6][4]

The class features a labyrinthine network of curved corridors, with circuitry concealed behind purple metal casings. At junctions, gaps in the ceiling and floor appear to accommodate Huragok maintenance personnel, allowing them to float between levels easily and quickly.

Like those of the SDV-class heavy corvette, the doors on the CCS-class battlecruiser open by a three-way system. Unlocked doors are outlined in white light, while locked ones have crimson light. They are protected from electronic intrusion by a 128,000-bit modulating encryption key, but this key can be penetrated by a sufficiently advanced artificial intelligence within minutes.[6]

The CCS-class battlecruiser it outfitted with two large tritium plasma-powered[23]repulsor engines for sublight propulsion. The ship's slipspace field generators are fine-tuned enough to make much more efficient and lower-power transitions to slipspace than UNSC ships; making the vessel faster at traveling through the alternate dimension. Covenant ships are also capable of greater precision in exiting Slipspace at a given location.[4]

The engine room contains fiber-optic cables that run from to the control room. These cables are very delicate and, if severed, can cause the vessel to crash.[24]

Since the beginning of the Covenant, the battlecruiser has consistently been the hegemony's primary mode of intragalactic transportation.[9] For the centuries leading up to the Human-Covenant War, the CCS was involved in every major event in the Covenant's history, including both peace and conflict. Countless CCS-class battlecruisers were used during the Human-Covenant War in operations ranging from fleet engagements to glassing. They were considered among the most dangerous of Covenant ships and often spearheaded invasions.

Battlecruisers were a ship class used by European, American and Japanese navies during the First and Second World Wars, developed as an evolution of the armored cruiser, being faster and better-armed than their predecessors, often featuring armaments equivalent to a larger battleship but with lighter armor. By the 1930s, only the Royal navy was using the term "battlecruiser" for its older ships, as other navies replaced battlecruisers with battleships.

During the development of Halo 2, Solemn Penance was originally going to be a CCS-class battlecruiser, as seen in the E3 2003 demo.

The battlecruisers featured in Halo 3 and most later media have four fins instead of two, like those of the Truth and Reconciliation. These battlecruisers also feature the Marathon logo on their launch bays.

In the level New Alexandria in Halo: Reach, if the player performs the flyable Pelican and Phantom Easter egg and flies inside one of the CCS-class battlecruisers outside of the map, they will find a small cube in the center of either ship. It is a cube map, which contains the texture for the vessel.

If the Mythic skull is turned on while playing Halo: Reach, the CCS-class battlecruiser at the end of the level The Pillar of Autumn requires two shots from the Onager to be destroyed.

^The purple beams seen in Halo 2 are emitted from assault carriers' energy projectors, though it is reasonable that a battlecruiser's energy projectors could also emit purple beams.

^According to The Impossible Life and the Possible Death of Preston J. Cole, the CCS-class battlecruiser was first encountered at the Battle of Psi Serpentis in 2543. This contradicts Halo Wars: Genesis, which shows Cole's fleet engaging such vessels in 2526; Halo Wars, in which two CCS-class ships are encountered at Arcadia in 2531; data pad 10, which states that the Assembly's findings about glassing were derived from observing the CCS class in 2526; and Halo: The Essential Visual Guide and the Halo Encyclopedia, which state that the vessel was encountered throughout the war.

^The layout reference image is compiled based on both all the canonical information as viewed in Halo: Combat Evolved, the novels, the latest reference guides, and the Halo Legends episode The Package. If new information contradicts this information, the image will be updated accordingly.